The tallest hotel in Europe.

Moscow's imposing monument to the Space Age.

Former headquarters of the KGB.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

Museum celebrating the achievements of the Soviet space program.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

Bill Murray bowled three straight strikes here at Reno's "Taj Mahal of Tenpins."

One of Amsterdam's narrowest houses is located right across the canal from its widest.

Amsterdam's former hotspot for public executions and dissections.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

A floating cat sanctuary on an Amsterdam canal.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

An enormous and lavish Gothic church in Czechia.

This spooky statue sits outside a famous Prague theater.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A surreal statue honoring Prague's favorite literary son.

Steadily reminding Czechia of its past.

This unusually shaped mountaintop tower looks like a UFO floating over the city.